Analysis

  • max time kernel
    18s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 18:23

General

  • Target

    770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe

  • Size

    1.5MB

  • MD5

    fb0fd3a34f607531b4d2686b0eb281d0

  • SHA1

    23b6d04319aa57b457e700352cd0af0bbaf1a6d7

  • SHA256

    770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07

  • SHA512

    1664e1c4ad0ec0f7434af8bb2d97aee6cda7e86d974725e695c865aac69fa3eedf2d36b28eb889230c7ee25bdf92d35fecedd4a698bb3c986c899c3d8268bb16

  • SSDEEP

    24576:LGX3qIFLC2btK40XrkyrMuTVloP9MNIuHwP7Up93vFUh+tz0G6BzzwNMWPPpS:qqIFLC2bc40XrRMuj6qXe7aChEoXwK

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe
    "C:\Users\Admin\AppData\Local\Temp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Users\Admin\AppData\Local\Temp\is-GSC6B.tmp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-GSC6B.tmp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.tmp" /SL5="$60150,1175167,119296,C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe

    Filesize

    1.5MB

    MD5

    dd9581e0ab28526168a5c3aba7cb6b0e

    SHA1

    0d343371744fb28405d2d9a46f99f65e7d5af4d1

    SHA256

    a21fac9c0e3af024e9e82a9ca1d0f5c2014c1dde85de1c28fb2337733e6e9537

    SHA512

    dc4009bf531cf1560e8cf5cce2d7f10de74651bcd0c5228aa35fc37840fca79e5590387a9683ddb3093450f1f4d7f53451d3f320e209a477f02f69341db42b38

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\is-GSC6B.tmp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.tmp

    Filesize

    1.1MB

    MD5

    4de6f44810bad050ac81f45549d58f34

    SHA1

    e001b982a0a978deed96789f943bf295dd2ba1d8

    SHA256

    cf8a77f4cbd38f6ab44fcff738f81ec8dfdaa7ef5a64d62fdd84c6fe897adff5

    SHA512

    550e468c3d6660ce2030fca16549eace9153610e19621cba83fea691f8d0091edb596a869168cf4b7f80fa55a808ca1703e4e2beffb3ade5af3fb67b6ead6673

  • \Users\Admin\AppData\Local\Temp\is-VK887.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1560-14-0x0000000000401000-0x0000000000412000-memory.dmp

    Filesize

    68KB

  • memory/1560-11-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1560-103-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1964-104-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1964-106-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2980-26-0x0000000000400000-0x000000000052B000-memory.dmp

    Filesize

    1.2MB

  • memory/2980-101-0x0000000000400000-0x000000000052B000-memory.dmp

    Filesize

    1.2MB